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hwmon: (amc6821) add of_match table

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[ Upstream commit 3f003fda98a7a8d5f399057d92e6ed56b468657c ]

Add of_match table for "ti,amc6821" compatible string.
This fixes automatic driver loading by userspace when using device-tree,
and if built as a module like major linux distributions do.

While devices probe just fine with i2c_device_id table, userspace can't
match the "ti,amc6821" compatible string from dt with the plain
"amc6821" device id. As a result, the kernel module can not be loaded.

Cc: stable@vger.kernel.org
Signed-off-by: Josua Mayer <josua@solid-run.com>
Link: https://lore.kernel.org/r/20240307-amc6821-of-match-v1-1-5f40464a3110@solid-run.com
[groeck: Cleaned up patch description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Josua Mayer 2024-03-07 12:06:58 +01:00 • committed by Ksawlii
parent a304b6f0b9
commit ec6efd37e5
1 changed files with 11 additions and 0 deletions
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11
drivers/hwmon/amc6821.c
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@ -934,10 +934,21 @@ static const struct i2c_device_id amc6821_id[] = {
MODULE_DEVICE_TABLE(i2c, amc6821_id); MODULE_DEVICE_TABLE(i2c, amc6821_id);
static const struct of_device_id __maybe_unused amc6821_of_match[] = {
{
.compatible = "ti,amc6821",
.data = (void *)amc6821,
},
{ }
};
MODULE_DEVICE_TABLE(of, amc6821_of_match);
static struct i2c_driver amc6821_driver = { static struct i2c_driver amc6821_driver = {
.class = I2C_CLASS_HWMON, .class = I2C_CLASS_HWMON,
.driver = { .driver = {
.name = "amc6821", .name = "amc6821",
.of_match_table = of_match_ptr(amc6821_of_match),
}, },
.probe_new = amc6821_probe, .probe_new = amc6821_probe,
.id_table = amc6821_id, .id_table = amc6821_id,